Bluetec ® Exhaust Gas Aftertreatment Indicator (Off-Highway Version) - Mercedes-Benz OM 904-926 LA BlueTec Operating Instructions Manual

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BlueTec exhaust gas aftertreatment indicator (off-highway version)
Problem
The ; indicator
lamp lights up briefly
and goes out again.
The ; indicator
lamp flashes.
Simultaneously, a dis-
play message with a
red status indicator
appears in the display.
67
The ; indicator
lamp lights up perma-
nently.
Engines with BlueTec
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When the AdBlue
again. If the system check does not detect any other faults, the ; indicator lamp goes out.
It may take several journeys/working cycles to complete the system check.
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BlueTec exhaust gas aftertreatment indicator (off-highway version)
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AdBlue /DEF level low
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If the AdBlue /DEF level is too low, the system registers the following warnings:
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AdBlue /DEF level
Trigger 1:
Level 20% or less
Trigger 2:
Level 10% or less
The engine output is not reduced in the case of emergency vehicles, e.g. fire engines.
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Possible causes/consequences and M Solutions
if there are no malfunctions, the ; indicator lamp lights up
briefly during the instrument cluster's display check and then goes
out again.
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The AdBlue
There is a fault.
The engine output may be reduced
X
Follow the instructions in the display messages.
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The BlueTec
emissions-relevant malfunction.
A malfunction or fault could damage the BlueTec
aftertreatment.
The engine output may be reduced
X
Have the BlueTec
as possible at a qualified specialist workshop.
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exhaust gas aftertreatment:
/DEF tank is filled or the fault is rectified, full engine power will be available
/DEF tank is empty.
exhaust gas aftertreatment system has a fault or an
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exhaust gas aftertreatment checked as soon
System message
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The å AdBlue /DEF indicator lamp lights up.
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The å AdBlue /DEF indicator lamp lights up.
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.
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exhaust gas
8
.
95
Z